OCTYPE
OCTYPE, DataType
, Name
Specifies the type of ocean load data to follow.
DataType
The type of ocean data to be input following this command:
BASIC
—
The basic ocean load, required for any ocean loading.
CURR
—
An optional drift current.
WAVE
—
An optional ocean wave state.
Name
An eight-character name for the ocean load. An ocean name can consist of letters and numbers, but cannot contain punctuation, special characters, or spaces.
Notes
The OCTYPE command specifies the type of ocean load data to follow (basic, current, or wave). Issue this command before defining your ocean load data (OCDATA and OCTABLE).
Ocean loading applies only to current-technology pipe (PIPE288 and PIPE289), surface (SURF154), link (LINK180) and beam (BEAM188 and BEAM189) elements.
An ocean current or wave is accessible repeatedly. For example, it is not necessary to input an identical current table again just because the drag coefficients of the basic input table have changed.
The following example shows how you can use the basic (DataType
= BASIC), current (DataType
= CURR), and wave (DataType
= WAVE) ocean
data types within the context of a simple input file fragment:
Do=1.5 ! outside diameter th=0.1 ! wall thickness height=10 ! wave height CS=2 ! surface current speed Depth=100 ! water depth matwat=2 ! material number id of the ocean secpipe= 1 ! section number of the pipe ! sectype,secpipe,pipe,,pipetest secdata,Do,th,16 ! 16 cells around circumference ! octype,basic ocdata,Depth,matwat,0,0,0,0 ! suppress added mass and buoyancy octable,,,.5,.5,,2 ! CD = .5, CM = 2 octype,curr octable,0.0,CS ! input free surface current speed octable,Depth,0.00 ! input ocean floor current speed of 0.0 ! octype,wave ocdata,2 ! request Stokes wave type octable,height,8 ! wave period of 8 seconds slist,all ! lists pipe section AND ! mentions ocean loading oclist,all ! lists details of ocean loading